[jleader]

I'm pretty sure I saw a guy lift out a large vertical rectangular object from in front of the engine, fairly early in the video. When it was put back in, he reached way down in between it and the engine, like maybe he was re-attaching the bottom hose (presumably without a hose clamp, or any fluids). But I could be wrong, I only watched that part twice, and I wasn't concentrating on the radiator.

[byw]

I went back to see it, and indeed it's there at around 0:32. It's right behind the grille, so it's probably a radiator or at least a fan.